During prenatal development,the placenta
A) transfers nutrients and oxygen from mother to embryo.
B) can damage an embryo or fetus as a result of exposure to viruses or drugs.
C) represents decreased responding to stimuli.
D) leaves chemical marks on DNA that switch genes abnormally on or off.

Question

Quizplus · Accepted Answer

The placenta is a vital organ during prenatal development that functions as a site of nutrient and gas exchange between the mother and developing embryo/fetus. It allows for the transfer of oxygen and nutrients from the mother’s blood to the developing baby, while also removing waste products from the baby’s blood. B, C, and D are not accurate descriptions of the function of the placenta.

During Prenatal Development,the Placenta